Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Quankui Yang"'
Autor:
Quankui Yang
Publikováno v:
AIP Advances, Vol 13, Iss 8, Pp 085225-085225-5 (2023)
We deduce in this paper the exact solutions for the calculation of full width at half maximum (FWHM) and finesse F of ring resonators in which light is coupled from a bus to a ring. These solutions are shown to be simple in math. Furthermore, we dedu
Externí odkaz:
https://doaj.org/article/9026d35498d24d03a9ba6fae1e91d186
Autor:
Ralf Ostendorf, Lorenz Butschek, Stefan Hugger, Frank Fuchs, Quankui Yang, Jan Jarvis, Christian Schilling, Marcel Rattunde, André Merten, Jan Grahmann, Dusan Boskovic, Thorsten Tybussek, Klaus Rieblinger, Joachim Wagner
Publikováno v:
Photonics, Vol 3, Iss 2, p 28 (2016)
External-cavity quantum cascade lasers (EC-QCL) are now established as versatile wavelength-tunable light sources for analytical spectroscopy in the mid-infrared (MIR) spectral range. We report on the realization of rapid broadband spectral tuning wi
Externí odkaz:
https://doaj.org/article/88a0de36dba14405b95774cce43a3172
Publikováno v:
Photonics, Vol 3, Iss 2, p 30 (2016)
Performance modeling of the characteristics of mid-infrared quantum cascade lasers (MIR QCL) is an essential element in formulating consistent component requirements and specifications, in preparing guidelines for the design and manufacture of the QC
Externí odkaz:
https://doaj.org/article/fee3e13cbdf8456c9b1f9248700558a7
Publikováno v:
Semiconductor Science and Technology. 38:055009
We present a high-resolution electron tomography study of buried ultra-thin layers and their interfaces from the active region of a (Ga,In)As/(Al,In)As quantum cascade laser (QCL) test structure. Using a high-angle annular dark-field scanning transmi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fa19ac3d5981601a1aad5a1c08e8f9f
https://doi.org/10.1088/1361-6641/acc34f
https://doi.org/10.1088/1361-6641/acc34f
Autor:
Müller, Raphael, Daumer, Volker, Hugger, Tsvetelina, Kirste, Lutz, Luppold, Wolfgang, Niemasz, Jasmin, Rehm, Robert, Stadelmann, Tim, Wobrock, Mark, Quankui Yang
Publikováno v:
Opto-Electronics Review; 2023 Special Issue, Vol. 31, p1-7, 7p
Autor:
C. Schilling, H. Heußen, Lutz Kirste, Rachid Driad, Ralf Ostendorf, Quankui Yang, Stefan Hugger, Rolf Aidam
Publikováno v:
Journal of Crystal Growth. 513:1-5
Design and growth characteristics of broadly tunable hetero-cascading quantum cascade lasers are discussed. We show the influence of electric field variation, and interface roughness on the gain spectra. Interface roughness is shown to play an import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9367eb5bdae2acda94d417ce486a0d92
https://doi.org/10.1016/j.jcrysgro.2019.02.038
https://doi.org/10.1016/j.jcrysgro.2019.02.038
Autor:
Thorsten Passow, Quankui Yang
Publikováno v:
Optics letters. 45(17)
A general eigen equation has been deduced that can handle ideal and non-ideal quarter-wavelength cases of Bragg-reflection waveguide structure for nonlinear interaction with matching layers on each side of the active region. In particular, this equat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1377221855f4fb39785af16d9d259760
https://pubmed.ncbi.nlm.nih.gov/32870846
https://pubmed.ncbi.nlm.nih.gov/32870846
Autor:
Quankui Yang, Fabrizio R. Giorgetta, Esther Baumann, Klaus Köhler, Christian Manz, Daniel Hofstetter
In this paper, we give an overview of quantum cascade detector technology for the near- and mid-infrared wavelength range. Thanks to their photovoltaic operating principle, the most advanced quantum cascade detectors offer great opportunities in term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d3605bb96917d1e591cfc3dd57cf319
http://doc.rero.ch/record/315032/files/340_2010_Article_3965.pdf
http://doc.rero.ch/record/315032/files/340_2010_Article_3965.pdf
Publikováno v:
Advanced Optical Technologies. 3:141-150
There is an increasing demand for wavelength agile laser sources covering the mid-infrared (MIR, 3.5–12 µm) wavelength range, among others in active imaging. The MIR range comprises a particularly interesting part of the electromagnetic spectrum f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80211acbc0132f260f94c066071e3026
https://doi.org/10.1515/aot-2014-0006
https://doi.org/10.1515/aot-2014-0006
Autor:
Rachid Driad, Quankui Yang, Frank Fuchs, C. Schilling, Stefan Hugger, Wolfgang Bronner, Rolf Aidam, J. Jarvis, Joachim Wagner, Ralf Ostendorf
Publikováno v:
SPIE Proceedings.
We perform active hyperspectral imaging using tunable mid-infrared (MIR) quantum cascade lasers for contactless identification of solid and liquid contaminations on surfaces. By collecting the backscattered laser radiation with a camera, a hyperspect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de21bc1f4e465a8e77c4204e19fa9ca
https://doi.org/10.1117/12.2223581
https://doi.org/10.1117/12.2223581